title: Progression and predictors of physical activity levels after radical prostatectomy.
abstract: OBJECTIVE
  To investigate the progression of all aspects (total, occupational, sports, household) of physical activity (PA) over time after radical prostatectomy (RP) and to find predictive factors for a decrease in PA.
  
  
  METHODS
  In all, 240 men planned for open or robot-assisted RP were analysed. All patients completed the Flemish Physical Activity Computerised Questionnaire before RP concerning PA over the past year and at 6 weeks, 3, 6 and 12 months after RP for the PA of the past month. A linear model for repeated measures was used to evaluate the progression of continuous variables over time and the effect of various predictors for the progression of patients over time. A logistic regression model for repeated measures was used to evaluate binary measures.
  
  
  RESULTS
  Total, occupational, sports and household PA levels were significantly decreased at 6 weeks after RP, but recovered quickly to approximately baseline levels from that time. Predictive factors for decreased PA levels at 6 weeks after RP were a younger age (total PA level), being unskilled/semi-skilled (occupational PA level) and being unemployed/retired (household PA level). RP type (open vs robot-assisted) did not influence the different PA levels at 6 weeks, 3, 6 or 12 months after RP. The severity of first day incontinence and urine loss measured at 6 weeks and 3, 6 and 12 months after RP significantly affected total and/or household PA level at all time-points.
  
  
  CONCLUSIONS
  This is the first study to investigate the progression of all aspects of PA (total, occupational, sports and household) after RP and to find predictive factors for a decrease in PA. All PA levels were significantly decreased at 6 weeks after RP and recovered quickly to approximately baseline levels from that time. Patients that had robot-assisted RP did not have a faster recovery of PA than those that had open RP. Severity of first day incontinence and urine loss measured at 6 weeks and 3, 6 and 12 months after RP were significantly related to total and/or household PA level at all time-points.
authors.affiliation: Department of Rehabilitation Science, KU Leuven, Leuven, Belgium.
authors.forename: Inge
authors.initials: I
authors.lastname: Geraerts
authors.forename: Hendrik
authors.initials: H
authors.lastname: Van Poppel
authors.forename: Nele
authors.initials: N
authors.lastname: Devoogdt
authors.forename: Annouschka
authors.initials: A
authors.lastname: Laenen
authors.forename: An
authors.initials: A
authors.lastname: De Groef
authors.forename: Marijke
authors.initials: M
authors.lastname: Van Kampen
mesh_terms: D000367:Age Factors; D000368:Aged; D015992:Body Mass Index; D015331:Cohort Studies; D015444:Exercise / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D011468:Prostatectomy / Q000009:adverse effects; D011471:Prostatic Neoplasms / Q000150:complications / Q000503:physiopathology* / Q000628:therapy*; D020127:Recovery of Function / Q000502:physiology*; D012307:Risk Factors; D012959:Socioeconomic Factors; D013997:Time Factors; D016896:Treatment Outcome; D014549:Urinary Incontinence / Q000209:etiology / Q000503:physiopathology / Q000628:therapy
keywords: household; occupation; open and robot-assisted radical prostatectomy; physical activity; predictive factors; sports